Water-heater.



No. 719,356.. PLTBNT D JAN. 27, 19.03. J. MOGARTNEY.

WATER HEATER. APPLICATION FILED JAN. 26. 1900.

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Warren STATES ,JAMES MOCARTNEY, OF SAN FRANCISCO, CALIFORNIA.

WATER-HEATER.

SPECIFICATION forming part of Letters Patent No. 719,356, dated January 27, 1903.

Application filed January 25, 1900- Serial No. 2,793; (No model.)

To all whom, it ntmy concern:

Be it known that 1, JAMES MOCARTNEY, a citizen of the United States, residing at 4034 Seventeenth street, in the city and county of San Francisco and State of California, have invented certain new and useful Improvements in W ater-I'Ieaters; and I do hereby declare the following to be a full, clear, and exact description of said invention, such as will enable others skilled in the art to which it most nearly appertains to make, use, and practice the same.

This invention relates to improvements in water heaters and distributers.

The drawing is a vertical section of the heater and expansion and supply tank,show-- ing the connecting pipes and valves in full lines.

The Water-heater employed in the present invention is an improvementon that described and illustrated in the Letters Patent issued to me the 13th day of September, 1898, hearing No. 610,554. In the Letters Patent referred to the water is admitted between the outer walls of the heating-chamber and delivered at the top of the same to a down-pipe centrally located, which delivered the water to the lower end of the pile of spreadingdisks, up which the Water traveled to an outlet-pipe leading from the uppermost disk. This outlet-pipe was open, so that back pressure on the water passing through the heater was avoided. If such back pressure is produced, the water is held in the central pipe until steam is developed therein, which, rising through the pipe, causes a rumbling in the heater. It is to overcome this objection that I now introduce the supply-pipe 5 through the outer wall of the heating-chamber at the level of the lower disk,with which it is connected by a screw-threaded connection. The water is then carried upward through the spreading disks 8 and 10 to the outlet-pipe 20, which distributes it in the present instance for heating the house, suitable radiators being placed in the line of the pipe 20. The water is finally delivered to the expansion-tank 2 of ordinary c0nstruction. ThiseXpansion-tankreceivesthestreet or other supply water through the pipe 1, when the water in the tank 2 falls, so as to lower the float Al and open the valve 3. The

supply-pipe 5 extends from the bottom of the tank and enters the lower disk, as described. The volume of the flow of the water into the disks is regulated by the valve 6.

The circulation of the water contained in the pipes 20 and 5, the tank 2, and the disks 8 and 10 is established and maintained by the heater 21, in which commingled atmospheric air and gas is burned. The gas is delivered from a pipe 23 through a perfo forated tip 24 into the mixing-chamber 22, while atmospheric air is received in the same chamber between the legs of the spider25, in which the tip 24 is formed. The admission of the gas through the pipe 23 and the Water through pipe 5 is regulated by valves on each pipe, which are connected by a bar 26, having a handle 27. By this means the flow of gas and water is simultaneously started or suspended, and the diminution of each is proportionate to that of the other. As the quantity of water flowing through the disks for a given quantity of heat units varies the temperature of the waterdelivered from the disks, this is independently regulated by the valve 6. This valve is of a composite type, being the ordinary rotary valve having a transverse passage cut through it, through which the water flows and which is rotated by the bar 26. The valve in this instance is vertically bored to receive the screw-valve 6, the inner end of which is adapted to move across the transverse opening, and thereby diminish the said opening and the quantity of water admitted through the same. By means of this construction a small quantity of exceedingly-hot water may be drawn directly fromthe machine through the pipe 28, the valve 19 being turned to cut off the pipe 20 and pass the water into the pipe 28. In this manner the heater may serve the double purpose of a circulatory heater and an instantaneous heater, from which small quantities of water heated to a high temperature may be drawn.

In the heater heretofore constructed and in conformity with the patent above referred to the water has been passed from disk to disk through two or more connecting short pipes, which have been located to lead the water from the highest point of the lower disk to the lowermost point of the upper-disk. This arrangement has been found to be structo rally diflicultand has shortened the passage of the water through the disks where it has been most favorably exposed to the heat that is, while spread in a thin'sheet. In the present invention the short pipes 11 connect the adjoining disks at the outer edges of and on opposite sides diametrically, each pipe being located the same distance from the center. They are secured to the disks by being screwed into the threaded bosses 12. These are attached to the disks by the edges 13 being upturned to fit Within a groove in the abutting face of the boss that the inner edge of the opening of the boss may be turned over to clasp the edge 13. This makes a firm and tight joint when the disks are galvanized after the bosses are in place and the sides of the disk are joined, as shown in the drawings. By this arrangement of the pipes the water admitted on the one side of the disk is compelled to travel to the opposite side of the disk before rising to the next disk, thus holding the water in contact with the heat for a greater length of time. The disks are constructed, as shown in the drawings, in two sets, the one set, 8, having a central opening 9, through which the heat passes to strike upon the inverted apex of the disks 10, which are of less diameter than the disks 8 and have not the central opening. In mounting these disks are alternated. The uppermost disk 10 is not inverted, as are the lower ones of the same set, the apex being uppermost and at the point being provided with a boss 12, leading to the outlet-pipe through the valve 19. As in the patent above referred to, the water is spread in these disks in a thin sheet across the path of the heat to compel the same to travel in intimate contact therewith. As stated, however, by the present construction, the water is for a greater time or through a greater area held in contact with the heat. The side walls of the chamber become intensely heated. It is to utilize this heat and at the same time overcome the objection of theheating of the apartment in which the heater is placed that I use the double wall forming a water-jacket 16. This is connected by the pipe 15 to the supply-pipe 5. The water as heated in the jacket rises and passes out through the bridge pipe 17 and from thence through the valve 19 in the T connection 18 into the pipe 20. The volume of Water entering the jacket 16 regulates the speed at which it flows through the jacket, and consequently the temperature of the Water on leaving the jacket. This regulation is effected in the present construction by the valve 7. By means of this construction the heatingchamber is surrounded by Water which absorbs the heat which would otherwise be radiated into theapartment; also, when the instantaneous feature is desired for use the supply to the jacket may be so diminished as to heat the water to the desired temperature before gaining the outlet-pipe 28.

In a hot-water heat-radiation system employing the heater described the circulation is established and maintained by causing the water to spread in attenuated sheets in contact with the heat, so that it rapidly absorbs the heat. This water is passed and repassed through the spreading-chambers to be reheated and again sent out to the heat-radiators located on the outlet or delivery pipe. The flow of the water through the spreading-chambers may be so regulated as to absorb the maximum amount of the heat of combustion in the heating-chamber or otherwise and by so doing regulate the heating effect of the system. Also by the double-valved arrangement the heat of combustion is regulated in proportion to the quantity of water and the speed of its circulation, thereby absorbing thoroughly the heat units of combustion into the water.

I am aware that hot-water heat-radiation systems having a heater through which the water is passed and repassed have been used, and such I do not claim. Further, I am aware that water-heaters in which chambers for spreading the water in thin sheets across the path of the heat have been used are not broadly new and such I do not so claim; but

What I do claim is 1. In a water-heater, a water-jacket forming the wall of the combustion-chamber and having at its top an opening for the exit of the products of combustion, a bridge-pipe extending across said opening and communicating with the water-jacket, members withinsaid chamber and providing a passage for containing water during the time of its heating, said passage emptying into said bridgepipe, supply-pipes for the said passage and the water-jacket, and an outlet-pipe from said bridge'pipe; substantially as described.

' 2. A water-heating disk having an opening therein, and a boss for the attachment of a pipe on said disk about said opening, said boss having a groove in its face adjacent the disk into which groove fits the edge of the disk surrounding the said opening, the inner edge of the opening of the boss being turned over to clasp the said disk edge; substantially as described.

In testimony whereof I have hereunto-set my hand this 22d day of November, 1899.

JAMES MCCARTNEY.

Witnesses:

E. F. MURDOOK, G. W. MARsH. 

